SERVER DOWN... Restore from files (/opt/zimbra/backup) what files are needed.

To restore from my NE backup files, (/opt/zimbra/backup) what files are needed.
If I had a server crash, what files under /opt/zimbra/backup will I need?
Can I use the most current "full" backup and the other "incr". Files to get to my current (or most current) statut, that would mean I have a full backup from
2010 3 - 05 and 3 INCR files.
Is that all I need?
I've had a critical harware failure and am trying to get this back up. any speedy response would be appreciated.